Light-emitting module and method for manufacturing light-emitting module

Abstract

A light-emitting module includes a light source part, a light-transmitting member including a first light-transmitting part and a second light-transmitting part, the second light-transmitting part is positioned at an upper side of the light source part and the first light-transmitting part, and a light-adjusting member located at an upper side of the light source part, the first light-transmitting part, and the second light-transmitting part, wherein the first light-transmitting part contacts a lateral surface of the light source part, the light-adjusting member includes a through-hole positioned away from the light source part in a plan view, the light-transmitting member includes a recess communicating with the through-hole, and at least a portion of the recess is positioned lower than a lower surface of the light-adjusting member.

What is claimed is: 
     
         1 . A light-emitting module, comprising:
 a light source part;   a light-transmitting member including
 a first light-transmitting part contacting a lateral surface of the light source part, and 
 a second light-transmitting part positioned at an upper side of the light source part and the first light-transmitting part; and 
   a light-adjusting member located at an upper side of the light source part, the first light-transmitting part, and the second light-transmitting part,   the light-adjusting member having a through-hole positioned away from the light source part in a plan view,   the light-transmitting member having a recess communicating with the through-hole,   at least a portion of the recess being positioned lower than a lower surface of the light-adjusting member.   
     
     
         2 . The light-emitting module according to  claim 1 , wherein
 the light-adjusting member includes a resin member and a reflector, and   a reflective index of the reflector is lower than a reflective index of the resin member.   
     
     
         3 . The light-emitting module according to  claim 1 , wherein
 the light-adjusting member includes one or more additional through-holes in the plan view, and   all of the through hole and the one or more additional through-holes are positioned away from the light source part in the plan view.   
     
     
         4 . The light-emitting module according to  claim 1 , wherein
 the through-hole includes a line-shaped portion in the plan view.   
     
     
         5 . The light-emitting module according to  claim 1 , further comprising:
 a light guide member having
 a first surface, 
 a second surface at a side opposite to the first surface, and 
 a housing part extending from the first surface to the second surface, 
   the light source part being located in the housing part.   
     
     
         6 . The light-emitting module according to  claim 5 , wherein
 at least a portion of an outer edge of the light-adjusting member is positioned outward from an outer edge of the housing part in the plan view.   
     
     
         7 . The light-emitting module according to  claim 5 , wherein
 the light guide member has a hole part open at a first surface side of the light guide member.   
     
     
         8 . The light-emitting module according to  claim 7 , wherein
 the second light-transmitting part contacts a surface of the light guide member defining the hole part.   
     
     
         9 . A method for manufacturing a light-emitting module, the method comprising, in order:
 providing an intermediate body, the intermediate body comprising
 a light source part, 
 a light-transmitting member contacting a lateral surface of the light source part, and 
 a light-adjusting member positioned at an upper side of the light source part and the light-transmitting member; and 
   forming a through-hole in the light-adjusting member,   the through-hole being positioned away from the light source part in a plan view.   
     
     
         10 . The method according to  claim 9 , wherein
 the forming of the through-hole includes forming the through-hole by laser irradiation.   
     
     
         11 . The method according to  claim 9 , wherein
 the forming of the through-hole includes forming a recess in the light-transmitting member, and wherein the recess communicates with the through-hole.   
     
     
         12 . The method according to  claim 9 , the method further comprising performing ozone cleaning or a plasma treatment of the light-adjusting member after the forming of the through-hole. 
     
     
         13 . The method according to  claim 9 , wherein in the providing of the intermediate body, the light-adjusting member includes
 a first region overlapping the light source part in the plan view,   a second region being positioned away from the light source part in the plan view, and   a hole part being positioned in the second region and being open at a surface of the light-adjusting member facing the light-transmitting member, and   at least a portion of a surface of the light-adjusting member defining the hole part contacts the light-transmitting member, and   wherein the method further comprises removing a portion of the second region positioned outward from the through-hole after the forming of the through-hole, and   the portion of the second region includes the hole part.